In Norse mythology the Sun and Moon are known as Sol and Máni. Sol and Máni are constantly racing across the skies in their chariots because of the two wolves that chase them, Skoll and Hati. The two wolves are children of a Jotun that lived in the east woods. Skoll spends all his time pursuing the sun with ambitions to swallow it whole, as Hati pursues Máni with the same intentions. This is why there is night and day.